I agree with you Creating new casino need a lot of work including huge capital in the beginning the cost of the software itself and employee. New Casino is need huge marketing people and money sometimes you need to give the user jackpot to attract other user to join.
and you need implement KYC or AML to comply with government and so on.
We need to understand two things here. First, of all just like every other business owing a Bitcoin
BTC casinos is a business in itself and not everyone is accepted to own and run a business.
But this does not mean that the new casino can't be open, or that they are not feasible to open. Many new casinos are opening and will continue to open and they will also follow all the AML/KYC processes and investors/businessmen have the capital too to run the casino. Everything is hard initially but those who pass through this phases, are also rewarded well.
Also, with all the competition in online gambling casinos, the new ones can still compete if they are honest, provide good services and have an adequate budget.